Crystallization behavior of polycaprolactone/babassu compounds

Polycaprolactone/babassu compounds were prepared in a laboratory internal mixer, their melt crystallization behavior was investigated using a differential scanning calorimeter, and their kinetics was correlated using the Pseudo-Avrami model, with cooling rates ranging from 2.5 to 15 °C min −1 . Baba...

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Veröffentlicht in:Journal of thermal analysis and calorimetry 2021-02, Vol.143 (4), p.2963-2972
Hauptverfasser: Schäfer, Hannes, Reul, Lizzia T. A., Souza, Fernanda M., Wellen, Renate M. R., Carvalho, Laura H., Koschek, Katharina, Canedo, Eduardo L.
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Sprache:eng
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Zusammenfassung:Polycaprolactone/babassu compounds were prepared in a laboratory internal mixer, their melt crystallization behavior was investigated using a differential scanning calorimeter, and their kinetics was correlated using the Pseudo-Avrami model, with cooling rates ranging from 2.5 to 15 °C min −1 . Babassu filler did not affect significantly crystallization parameters, with maximum differences of 1.2 K in temperature and 3% in crystallinity, within experimental uncertainty. Regarding Pseudo-Avrami parameters, data were correlated for the interval 5–95% conversion, which seems to be appropriate for processing applications; the uncertainty associated with Pseudo-Avrami individual parameters is less than 1%, whereas the “rate parameter” K was found to be well represented by a quadratic function.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-020-09433-0